/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.tool;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.iotdb.exception.ArgsErrorException;
import org.apache.iotdb.session.Session;

import java.io.IOException;

public abstract class AbstractTsFileTool {

    protected static final String HOST_ARGS = "h";
    protected static final String HOST_NAME = "host";

    protected static final String HELP_ARGS = "help";

    protected static final String PORT_ARGS = "p";
    protected static final String PORT_NAME = "port";

    protected static final String PASSWORD_ARGS = "pw";
    protected static final String PASSWORD_NAME = "password";

    protected static final String USERNAME_ARGS = "u";
    protected static final String USERNAME_NAME = "username";

    protected static final String TIMEOUT_ARGS = "t";
    protected static final String TIMEOUT_NAME = "timeout";
    protected static final int MAX_HELP_CONSOLE_WIDTH = 92;
    protected static final int CODE_OK = 0;
    protected static final int CODE_ERROR = 1;

    protected static String host;
    protected static String port;
    protected static String username;
    protected static String password;
    protected static Session session;

    public AbstractTsFileTool() {
    }

    protected static String checkRequiredArg(String arg, String name, CommandLine commandLine)
            throws ArgsErrorException {
        String str = commandLine.getOptionValue(arg);
        if (str == null) {
            String msg = String.format("Required values for option '%s' not provided", name);
            System.out.println(msg);
            System.out.println("Use -help for more information");
            throw new ArgsErrorException(msg);
        }
        return str;
    }

    protected static void parseBasicParams(CommandLine commandLine)
            throws ArgsErrorException, IOException {
        host = checkRequiredArg(HOST_ARGS, HOST_NAME, commandLine);
        port = checkRequiredArg(PORT_ARGS, PORT_NAME, commandLine);
        username = checkRequiredArg(USERNAME_ARGS, USERNAME_NAME, commandLine);
        password = commandLine.getOptionValue(PASSWORD_ARGS);
    }

    protected static Options createNewOptions() {
        Options options = new Options();

        Option opHost =
                Option.builder(HOST_ARGS)
                        .longOpt(HOST_NAME)
                        .required()
                        .argName(HOST_NAME)
                        .hasArg()
                        .desc("Host Name (required)")
                        .build();
        options.addOption(opHost);

        Option opPort =
                Option.builder(PORT_ARGS)
                        .longOpt(PORT_NAME)
                        .required()
                        .argName(PORT_NAME)
                        .hasArg()
                        .desc("Port (required)")
                        .build();
        options.addOption(opPort);

        Option opUsername =
                Option.builder(USERNAME_ARGS)
                        .longOpt(USERNAME_NAME)
                        .required()
                        .argName(USERNAME_NAME)
                        .hasArg()
                        .desc("Username (required)")
                        .build();
        options.addOption(opUsername);

        Option opPassword =
                Option.builder(PASSWORD_ARGS)
                        .longOpt(PASSWORD_NAME)
                        .optionalArg(true)
                        .argName(PASSWORD_NAME)
                        .hasArg()
                        .desc("Password (required)")
                        .build();
        options.addOption(opPassword);
        return options;
    }
}
